Gunpowder is a ________.

Options

A. solid-liquid homogeneous mixture
B. solid-liquid heterogeneous mixture
C. solid-solid homogeneous mixture
D. solid-solid heterogeneous mixture

Explanation

**Step-by-Step Solution:**

1. **Identify the Components of Gunpowder:**
- Gunpowder is composed of three main components: Potassium Nitrate (KNO3), Charcoal, and Sulfur.
- The typical composition is approximately 70% KNO3, 15% Charcoal, and 10% Sulfur.

2. **Determine the Nature of Each Component:**
- Potassium Nitrate (KNO3) is a solid.
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